Interoperable interactive geometry for Europe
I forgot my login data
Register


Report a bug


Fan club

Quick Intro Videos
click to start movie
Create A Simple
GeoGebra Resource (25Mb)
click to start movie
Filing a review
click to start movie
Find a Resource

SPONSORS
This platform is brought to you by the intergeo project, funded under the eContent Plus programme of the European commission and by partners

Spiral of Three Half Equilateral Triangles Using Dr Geo (png image file)

Spiral of Three Half Equilateral Triangles Using Dr Geo (png image file)

Half equilateral triangles (30°-60°-90° triangles) are positioned recursively, with the side of one triangle as the hypotenuse of the next. A circle is inscribed in each triangle. The three triangles meet at one point to form a right angle. Explain how this construction divides that right angle into six equal angles. The data file for Dr Geo is also on i2geo.net as Spiralofthreehalfequilateraltriangles.drgeo

Open or Download This File:

Download